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Got Limu? Uses for Algae in Hawaii…. and Beyond!

Got Limu? Uses for Algae in Hawaii…. and Beyond!. Heather Spalding UH Manoa GK-12 Program Hui Malama Learning Center. What is algae, anyway?. ……YES!. Is it pond scum? Is it that slimy green stuff on the inside of your tanks? Is it seaweed? Is it limu? Is it ogo? Is it nori?

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Got Limu? Uses for Algae in Hawaii…. and Beyond!

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  1. Got Limu?Uses for Algae in Hawaii….and Beyond! Heather Spalding UH Manoa GK-12 Program Hui Malama Learning Center

  2. What is algae, anyway? ……YES! • Is it pond scum? • Is it that slimy green stuff on the inside of your tanks? • Is it seaweed? • Is it limu? • Is it ogo? • Is it nori? • Is it phytoplankton? • Is it a plant? ……YES! ……YES! ……YES! ……YES! ……YES! ……YES! ……NO!

  3. Three main divisions of marine algae in Kingdom Protista: • Chlorophyta – green algae • Rhodophyta – red algae • Phaeophyta – brown algae

  4. Range in size from tiny microscopic life to giant ocean kelps over a hundred feet long!

  5. Psycho Phycos • “phykos” = Greek for “alga” • Phycology = study of algae • Phycologist = someone who studies algae • Every Phycologist’s Pet Peeve: • “Alga” is singular • “Algae” is plural • “Algaes” do not exist!!!

  6. Halimeda meadows form important habitat

  7. Algae is used for many purposes • Fertilizer • Food for humans and animals • Hawaiiian cultural practices • Extracted products: • potash • algin • carrageenan • agar

  8. Most common algae used for food worldwide • Porphyra (nori) • Gracilaria (ogo) • Rhodymenia (dulse) • Chondrus crispus (Irish moss)

  9. Porphyra (nori)

  10. Nori: better than potato chips! Also high in…. • Iodine • Vitamin B12 • Riboflavin • Calcium • Fiber

  11. Gracilaria (ogo) poke!

  12. Carrageenan Kappaphycus/Eucheuma (Rhodophyta)

  13. Kappaphycus/EucheumaWhen good algae go bad

  14. Agar • Extracted from Rhodophyta

  15. Algin/Alginate & Potash • Extracted from Phaeophyta

  16. Identify, then…IRON CHEF: Limu • Identify each alga by Genus species & Hawaiian name Use a recipe or create your own recipe using algae!

  17. Ulva (Limu palahalaha) Sea lettuce

  18. Enteromorpha(Limu ‘ele ‘ele)Totally tubular!

  19. Codium(Limu wawae’iole)“Rat’s foot”

  20. Common Algae (Limu) Eaten in Hawaii Dictyopteris (Limu lipoa) Sargassum (Limu kala)

  21. Asparagopsis(Limu kohu)

  22. Ahnfeltiopsis(Limu ‘aki ‘aki)

  23. Gracilaria (Limu manauea)ogo

  24. Limu NOT commonly eaten in HawaiiCaulerpa“Sea grapes”

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